Cooking device

Abstract

A cooking device for performing cooking using a microwave and steam, in which a door of a heating chamber includes, as constituting components, an inner frame, a choke cover, and a gasket. The inner frame is made of metal and has at its periphery a choke structure constructed from a large number of comb teeth. The gasket is installed in the door with a base section of the gasket held between the inner frame and the choke cover. A lip section of the gasket has a bag-like cross-section whose side that faces the inside of the heating chamber is an entrance. The forward end of the lip section is bent to the door side. The comb teeth, except those positioned at the corners of the door, are bent at a larger angle than in a case in which the gasket is not installed.

1. A cooking device using steam for cooking and having a heating chamber for cooking,
 wherein 
 a door of a heating chamber is provided with a gasket preventing leakage of steam from the heating chamber;  and 
 a lip section of the gasket has a bag-like cross section in which an opening is formed on a side thereof that faces an inside of the heating chamber, an end of the lip section in the bag-like cross section being bent toward the door so that steam pressure acts on the opening to inflate the bag-like cross section and press the gasket against a wall around an opening of the heating chamber. 
 
     
     
       2. The cooking device of  claim 1 , wherein
 the cooking device uses microwaves for cooking; 
 the door of the cooking chamber is provided with a choke structure preventing leakage of microwaves from the heating chamber and a choke cover covering the choke structure; 
 the gasket is fitted near the choke structure; and 
 the lip section of the gasket extends from a space between the choke cover and the door. 
 
     
     
       3. The cooking device of  claim 1 , wherein
 the lip section of the gasket has a shape that appears to be a bag having a mouth thereof narrowed.